Blue diamonds are considered the rarest and most desired on the market. A particularly big one sold for millions at Sotheby’s on Thursday, scraping just beneath the surface of its $26 million ...

If you gaze into the Winston Red Diamond long enough, it almost seems to burn. The 2.33-carat gem gleams a deep, saturated crimson, as if the Earth itself bled light into its facets. This tiny stone ...

A rare blue diamond was on display Tuesday at an exhibition of $100 million worth of the world’s rarest diamonds in the United Arab Emirates’ capital, Abu Dhabi. The eight diamonds on display at the ...

ABU DHABI, United Arab Emirates (AP) — A rare blue diamond was on display Tuesday at an exhibition of $100 million worth of the world’s rarest diamonds in the United Arab Emirates’ capital, Abu Dhabi.